After uploading some images I'm getting the following on the page that display the images

warning: imagecreatefromjpeg() [function.imagecreatefromjpeg]: gd-jpeg, libjpeg: recoverable error: Corrupt JPEG data: bad Huffman code in /home/fruityfridays/www/sites/all/modules/gallery/imageapi/imageapi_gd.module on line 59.
warning: imagecreatefromjpeg() [function.imagecreatefromjpeg]: 'sites/default/files/gallery/fruity-fridays-091211/img5356.jpg' is not a valid JPEG file in /home/fruityfridays/www/sites/all/modules/gallery/imageapi/imageapi_gd.module on line 59.

and the images don't display.

Is this a problem with the images that are being uploaded?